SB 7.1.42
hiranyakasipuh putram
prahladam kesava-priyam
jighamsur akaron nana
yatana mrtyu-hetave
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Desiring to kill his son Prahlada, who was a great devotee of Lord Visnu, Hiranyakasipu tortured him in many ways.